AJPH First Look, published online ahead of print Dec 27, 2005
Diarrheal Illness Detected Through Syndromic Surveillance After a Massive Power Outage: New York City, August 2003
Melissa A. Marx, PhD, MPH,
Carla V. Rodriguez, MPH,
Jane Greenko, MPH,
Debjani Das, MPH,
Richard Heffernan, MPH,
Adam M. Karpati, MD, MPH,
Farzad Mostashari, MD, MSc,
Sharon Balter, MD,
Marcelle Layton, MD and
Don Weiss, MD, MPH
At the time of the study, Melissa A. Marx, Carla V. Rodriguez, Jane Greenko, Debjani Das, Richard Heffernan, Sharon Balter, Marcelle Layton, and Don Weiss were with the Bureau of Communicable Disease, Disease Control Program, New York City Department of Health and Mental Hygiene, New York. Adam M. Karpati was with the Division of Health Promotion and Disease Prevention, New York City Department of Health and Mental Hygiene. Farzad Mostashari was with the Division of Epidemiology, New York City Department of Health and Mental Hygiene. Melissa A. Marx was also with the State Branch, Epidemiology Intelligence Service Program, Office of Workforce and Career Development, Centers for Disease Control and Prevention, Atlanta, Ga.

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FIGURE 1— Ratio of emergency department (ED) visits for diarrheal illness to other visits and total number of diarrhea visits: New York City, August 2003.
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FIGURE 2— Number of over-the-counter pharmacy sales for antidiarrheal medications: New York City, August 2003.
Note. Data are adjusted for day of week, holiday, and air temperature.
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FIGURE 3— Participation in investigation on the basis of syndrome-based case definition: New York City, August 2003.
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Copyright © 2006 by the American Public Health Association